“One hundred years of air power led to the development of air platforms, air combatants and air command and control structures that are very difficult to integrate successfully into the ground battlefield at the lower tactical levels.”

“The air of one’s native country is the most healthy air.”

“One is led to conclude that economics as a scientific discipline is still somewhat hanging in the air.”

“Since the wings are swifter to press the air than the air is to escape from beneath the wings the air becomes condensed and resists the movement of the wings; and the motive power of these wings by subduing the resistance of the air raises itself in a contrary movement to the movement of the wings.”

“Knowledge, like air, is vital to life. Like air, no one should be denied it.”

“Those that live in the air have to fight in the air.”

“If you take as your pattern the wings of feathered birds, these are more powerful in structure of bone and sinew because they are penetrable, that is to say the feathers are separated from one another and the air passes through them. But the bat is aided by its membrane, which binds the whole together and is not penetrated by the air.”

“It has come to my attention, that air pollution is polluting the air!”

“The function which the wing performs against the air when the air is motionless is the same as that of the air moved against the wings when these are without motion.”

“The supporting powers of time air and of the wind depend on the shape of the surfaces used, and the best forms can only be evolved by free flight through the air.”